What Does NIIN Stand For?

NIIN stands for National Item Identification Number

The National Item Identification Number (NIIN) is a unique, nine-digit identifier used to catalog and manage items within the United States Department of Defense and other federal agencies. The NIIN is part of the broader National Stock Number (NSN) system, facilitating the identification, tracking, and procurement of military supplies and equipment. It enhances logistics, inventory management, and supply chain efficiency by ensuring precise item identification across various systems and platforms.